package cn.fay.chapter13;

import java.util.Scanner;
import java.util.regex.MatchResult;

public class ThreatAnalyzer {
	
	private static String threatData=
			"58.21.82.161@02/10/2005\n"+
			"204.45.234.40@02/11/2005\n"+
			"58.27.82.161@02/11/2005\n"+
			"58.27.82.161@02/12/2005\n"+
			"58.27.82.161@02/12/2005\n"+
			"[Next log section with different data format]";
	
	public static void main(String[] args) {
		Scanner scanner=new Scanner(threatData);
		String pattern="(\\d+[.]\\d+[.]\\d+[.]\\d+)@"+"(\\d{2}/\\d{2}/\\d{4})";
		while(scanner.hasNext(pattern)){
			scanner.next(pattern);
			MatchResult match = scanner.match();
			String ip=match.group(1);
			String date=match.group(2);
			System.out.format("Threat on %s from %s\n", date,ip);
		}
	}
}
